Trove Tome

Tomes are an item that will give a certain number of resources and/or materials once its filled. There are two kind of tomes: weekly and unlimited. Weekly tomes can be used once a week, unlimited have no limits.
Tomes fill up as you complete dungeons, it doesn’t matter what level the dungeons are to fill up the tome, larger dungeons will give a higher percentage of filling than small dungeons. There are the following number of tomes in the game: Flux Folio, Glim Grimoire, Mycological Manual, Cybernetics Catalogue and many others.
The most rare is: Crystalline Core and Empowered gem box tomes.